TITANTIG 200 DC PULSE PRO, Operating Manual

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TitanTIG 200 DC Pulse Pro Operators Manual
Issue. A 0516
• TIG/DC operation, If the tungsten electrode touches the workpiece when welding, the current will drop
to short-circuit current to protect tungsten
• HF/Lift TIG, current down slope and up slope, gas post-flow, Pulse Frequency
• High frequency and high voltage for arc igniting to ensure the success ratio of igniting arc.
• Pedal control the welding current
• Intelligent protection: over-voltage, over-current, over-heat, when the problems listed before occurred,
the alarm lamp on the front panel will be on and the output current will be cut off. It can self-protect and
prolong the using life
• Bionic and Ergonomic industrial design.
• Front and rear panels made of high-intensity plastics suitable for working in severe conditions.
• Excellent insulating property.
• Water-resistant, antistatic and anticorrosion design.
Working Principle
The working principle of TitanTig 200 DC Pulse Pro welding machines is shown as the following figure.
Single phases work frequency AC 220V (50 Hz) is rectified into DC (about 312V), then is converted to
medium frequency AC (about 40KHz) by inverter device (IGBT), after reducing voltage by medium
transformer (the main transformer) and rectifying by medium frequency rectifier (fast recovery diode),
and is outputted by inductance filtering. The circuit adopts current feedback control technology to insure
current output stably. Meanwhile, the welding current parameter can be adjusted continuously and
steplessly to meet with the requirements of welding craft.
Rectify Inverter
Medium
frequency
transformer
Medium
frequency
rectify
Hall device
Current positive-
feedback control
DC
AC DC AC DC
380V,50HZ
Three-phases
AC
Volt-Ampere Characteristic
The TitanTig 200 DC Pulse Pro welding machine has an excellent volt-ampere characteristic, whose graph
is shown as the following figure. The relation between the conventional rated loading voltage U
2
and the
conventional welding current I
2
is as follows:
When I
2
≤600A
，
U
2
=10+0.04I
2
(V); When I
2
＞
600A,U
2
=34(V).
67
34
10
0 600 I
2
（
A
）
U
2
（
V
）
Working
point
Volt-ampere characteristic
The relation between the
conventional loading
voltage and welding current